 Brakes soft then hard, pump then pump again |
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| boxsterfan |
 Dec 11 2013, 11:48 AM
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914's are kewl  Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California  |
On my 74 2.0L with stock brake setup, when I hit the brakes the pedal can feel soft and if I let up on the brake and then depress again right away, it then becomes very firm.
Note that by "soft" feel on the pedal when first depressing the brakes does not mean that the car can not be stopped. Also the pedal is not "soft" in the sense that it depresses all the way to the floor. I seem to remember an old Datsun 240Z I had with similar braking behavior. Is this just behavior of 1970's braking systems or do I have air in the system or a faulty master cylinder? |
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Posts in this topic
boxsterfan Brakes soft then hard Dec 11 2013, 11:48 AM
podiummotorsports This sounds like you have air in the system somewh... Dec 11 2013, 11:57 AM Woody Check your rear caliper venting clearance. Then ch... Dec 11 2013, 12:13 PM stugray Does it behave that way immediately after starting... Dec 11 2013, 12:17 PM Mblizzard I had this on my first 914. Could never bleed it ... Dec 11 2013, 01:58 PM stugray
By chance: did you replace the flex lines at the... Dec 11 2013, 05:00 PM
Mblizzard
By chance: did you replace the flex lines at th... Dec 11 2013, 06:15 PM mgp4591 The seals in the master cylinder are going bad. Co... Dec 11 2013, 05:13 PM r_towle Set the rear venting clearance
Then
Bleed the brak... Dec 11 2013, 05:17 PM tomeric914
They make red, blue and amber fluid to help you k... Dec 11 2013, 07:38 PM rick 918-S Time for a brake system overhaul. If it were my ca... Dec 11 2013, 06:56 PM walterolin I think Rick is correct.
Talk to Eric, get his re... Dec 11 2013, 07:25 PM boxsterfan Thanks for all the replies. I have read here that ... Dec 11 2013, 07:41 PM Eric_Shea I doubt that's it.
Rebuild them recently?
D... Dec 11 2013, 08:07 PM r_towle
Spoke with ATE at SEMA. The guy recommended foo... Dec 11 2013, 08:40 PM boxsterfan
I doubt that's it.
Rebuild them recently?
... Dec 11 2013, 10:26 PM stugray I saw the writing on the wall and loaded up with a... Dec 11 2013, 09:13 PM Eric_Shea New soft lines never hurt.
I think you have a st... Dec 12 2013, 07:53 PM r_towle Set clearance on the rear brakes FIRST!!... Dec 12 2013, 08:01 PM mgp4591 If you use brake line clamps (not vise grips!)... Dec 12 2013, 09:38 PM LevisJeanz Also look under the at the pedal box and see if th... Dec 16 2013, 12:48 PM wndsnd I rebuilt my brakes from top to bottom, had the sa... Dec 16 2013, 02:51 PM Eric_Shea John, we have those. Dec 18 2013, 05:34 PM wndsnd Good for everyone to know. Also you have added al... Dec 18 2013, 05:43 PM  |
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